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Ok, once a upon a time, 5.1 was the latest Lua version.
That has changed. Indeed, Lua has changed considerably:
* Now yieldable pcall AND metamethods built in, instead of having to use the hackish ypcall!
* New library for bit operations BUILT in! Now that we can use the Internet in-game, and we might send sensitive data in such communications (such as signing into an account for some service in-game), we could use such a thing to create stuff like AES encryption implementations to encrypt such sensitive data!
* gotos! I just like them personally :).
What is NOT to love?! Why not switch? If you want to, you can show your support by saying "I support this" on this thread.
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But no newproxy() :(
Keyboard not found. Press F1 to continue. |
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What IS the use of newproxy though? It just gives you an empty userdata with no predefined metamethods (except comparison I think, which is just worthless for anything but references) |
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MettaurSpJoin Date: 2010-03-20
Post Count: 3179 |
You can use getmetatable on it to gain a metatable and make it useful. |
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just use a table in that case. Plus, I want to make an encryption module, and the lack of a bit manipulation module impedes that. |
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cntkillmeJoin Date: 2008-04-07
Post Count: 49450 |
newproxy is overrated, in most cases (well, all that I can think of) it could literally be replaced with a table |
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MettaurSpJoin Date: 2010-03-20
Post Count: 3179 |
rawset can ruin the point of using a table instead. newproxy would be better for when you want to create an object with tighter security (in my opinion). |
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Also, the fact that __index will only fire if the index is nil on a table = bad is some cases, especially where users are expected to use rawset. "Use a proxy!", you might say. But then you have two resources, and one resource might be freed while the other is still referenced, so that one is now leaked, = bad.
newproxy can solve these problems. Also, in Lua 5.2, we can't do as nice sandboxing because of fenv setup changes, = bad.
Sure, Lua 5.2 is good, but I do personally prefer 5.1.
~LuaWeaver; Programmer, gamer, developer. |
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cntkillmeJoin Date: 2008-04-07
Post Count: 49450 |
Now that you say it that way |
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Its not that simple to switch to Lua 5.2 |
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AlyteJoin Date: 2011-10-24
Post Count: 10090 |
I don't like 5.2 |
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Right, from what I have heard about Lua (Probably not that much) I dont see why they cannot simply take components from the current Lua version and plug them into Lua 5.2/5.3, then simply say "Deprecated (Do not use for new work)". Or simply remove them all together. Its not like they have not broken stuff before... |
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Because Lua does not come in parts. |
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I thought it did, or something similar, which is why we have Instances and the Roblox Specific Functions and other things like that. |
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And also why some of the default functions are excluded (os is one, I think there is a second) |
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And what if some of the lua source code uses newproxy? |
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jode6543Join Date: 2009-06-16
Post Count: 5363 |
GOTO is evil; never use it.
Anyways, the bit library is probably the feature that I'd like access to the most, but Roblox could just make their own C-side implementation of it instead of doing a total conversion to Lua 5.2.
~Jode |
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lordramboJoin Date: 2009-06-16
Post Count: 20628 |
I feel like if ROBLOX ever updates to 5.2 then 5.3 will come out like few months after. I asked this a long time ago, but forgot the answer if I was even given one. Does anyone know the ETA for 5.3? |
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suremarkJoin Date: 2007-11-13
Post Count: 6315 |
I don't like GOTO statements, but regardless of my own opinion, GOTO will facilitate the developing of bad habits in newbie scripters. It will turn code into spaghetti. |
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bohdan77Join Date: 2008-08-10
Post Count: 7944 |
lordrambo
From what i've seen, there's only about one new feature in 5.3. Following from their release schedule, i'm going to assume it's going to be released in several years. |
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suremarkJoin Date: 2007-11-13
Post Count: 6315 |
^ Lol |
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lordramboJoin Date: 2009-06-16
Post Count: 20628 |
@bohdan77
I'm sure there's going to be more than integer support in Lua 5.3 (assuming that's what you're talking about). |
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I know it is late to talk about anything on this thread, but I want to reply to some objections.
"newproxy has some uses!"
First off, why would we in the context of Riblox EVER need to fake indexes in a table?! If you want to use the index metamethod to do some extra computation on the side whenever a certain index is used, why can't you use a get method instead?! It is just unnecessary in this context.
"Can't we just add a bit manipulation library instead of upgrading? After all, upgrading is hard work."
It is not. You would probably just need to replace the lua section part of the Roblox project file (I imagine that Roblox is a just a big project file they compile, but they might use different methods) if they put lua into its own section (which they should have as professional devs).
"Gotos are evil!" That is if you use it as your primary form of control transfer. But, a label must be in scope, and it is not visible to nested functions to work, which helps to prevent spaghetti code. Plus, gotos can be used as a kind of exception mechanism.
Feel free to challenge me. You might even change my mind if you are persuasive. |
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